[PATCH 19/40] drm/amd/display: Don't set dram clock change requirement for SubVP

[Rodrigo Siqueira]

From: Alvin Lee <alvin.l...@amd.com>

[Description]
In general cases we want to keep the dram clock change requirement (we
prefer configs that support MCLK switch). Only override to false for
SubVP.

Reviewed-by: Jun Lei <jun....@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
Signed-off-by: Alvin Lee <alvin.l...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h | 1 +
 drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c     | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h 
b/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h
index b5d7e251ed81..87c9b9f9976e 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h
+++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h
@@ -184,6 +184,7 @@ struct _vcs_dpi_soc_bounding_box_st {
        double max_avg_fabric_bw_use_normal_percent;
        double max_avg_dram_bw_use_normal_strobe_percent;
        enum dm_prefetch_modes allow_for_pstate_or_stutter_in_vblank_final;
+       bool dram_clock_change_requirement_final;
        double writeback_latency_us;
        double ideal_dram_bw_after_urgent_percent;
        double pct_ideal_dram_sdp_bw_after_urgent_pixel_only; // 
PercentOfIdealDRAMFabricAndSDPPortBWReceivedAfterUrgLatencyPixelDataOnly
diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c 
b/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c
index 5185c2ccdfd5..95edca4c085b 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c
@@ -343,7 +343,7 @@ static void fetch_socbb_params(struct display_mode_lib 
*mode_lib)
        
mode_lib->vba.MaxAveragePercentOfIdealDRAMBWDisplayCanUseInNormalSystemOperationSTROBE
 =
                        soc->max_avg_dram_bw_use_normal_strobe_percent;
 
-       mode_lib->vba.DRAMClockChangeRequirementFinal = 1;
+       mode_lib->vba.DRAMClockChangeRequirementFinal = 
soc->dram_clock_change_requirement_final;
        mode_lib->vba.FCLKChangeRequirementFinal = 1;
        mode_lib->vba.USRRetrainingRequiredFinal = 1;
        mode_lib->vba.ConfigurableDETSizeEnFinal = 0;
-- 
2.25.1